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"Let's build your foundation!"
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Overview
Discover How Your Heart Pumps Blood Through Your Body
You will explore the cardiac cycle, the four chambers of the heart, and how blood circulates through two powerful loops to keep every cell in your body alive.
What You'll Learn
You will learn how your heart pumps blood to every body cell.
You will explore systole and diastole phases of the cardiac cycle.
You will discover how pulmonary and systemic circulation loops work.
You will understand key structures like valves, aorta, and capillaries.
What You'll Practice
1
You will identify the four chambers and their specific pumping roles.
2
You will explain what causes the lub-dub heartbeat sound you hear.
3
You will distinguish between arteries, veins, and capillaries in circulation.
Why This Matters
Understanding how your heart pumps blood through the cardiac cycle and circulation gives you the foundation to understand how every system in your body stays alive and healthy.
This Unit Includes
Practice exercises
Learning resources
Skills
Cardiac Cycle
Heart Chambers
Circulation
Heart Valves
Blood Vessels
